• International Journal of Reliability and Applications
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• 제10권1호
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• pp.59-62
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• 2009

We comment on a new testing procedure for testing exponentiality against different ageing classes. We show that the proposed test is inappropriate at least for two alternatives. We point out the subtle flaw in their argument.

• 한국전산구조공학회논문집
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• 제23권3호
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• pp.247-254
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• 2010

유리섬유강화 폴리에스터(GFRP) 복합소재는 가볍고 내구성이 뛰어나 강재, 콘크리트, 나무 등과 같은 기존의 구조 재료들을 대체할 수 있는 재료로 최근 각광 받고 있다. 이러한 복합소재를 활용하기 위해 쉽게 조립할 수 있는 수직결구식 복합소재 데크를 활용한 아치가교 유형을 선행 연구에서 제안하였고 유한요소해석을 통해 검증하였다. 이 논문에서는 선행연구에서 제안된 볼트결합에 의한 복합소재 데크 조립식 아치가교의 안전성 및 사용성을 구조성능시험을 통해 검증하여 문제점을 파악하고 그 문제점을 해결하기 위해 개선된 아치가교 유형을 제안한다.

• 한국의류학회지
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• 제35권1호
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• pp.26-36
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• 2011

The study analyzes the development of slim-fit formal pants patterns for middle-aged men. This study suggests a new pattern that complements the problems of the existing fit on the basis of the standard nude size for middle-aged men with lower garments through the analyses of one-tuck pants patterns from 5 popular brands. As a result, the waistline is lowered by 0.8cm out of consideration for the waist circumference. The crotch extension is reduced by 1.5cm, the back crotch length is revised, the center back waist point is raised by 0.9cm, and the hip line is straightened. The slim-fit is perfected of the new lines from the thigh to knee-line.

• 한국해양공학회지
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• 제14권4호
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• pp.79-85
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• 2000

Press-fit pin connection is the solderless interference-fit between pins and plated through holes(PTH) in the printed curcuit board(PCB). Because of not only its simple assembly and absence of problems associated with soldering, but also its good mechanical and electrical characteristics, the press-fit pin connection technology has quickly gained wide acceptance in the telecommunications and computer industries. In this paper, the contact stress characteristics of the domestic CPF pin when inserted into the friction coefficients were compared and the stress variations of the compliant part of the pin, which have an influence on the performance, were displayed with the time and arc length after complete connected. It is supposed that the results will provide useful data to improve the performance of the pin-PCB interconnection mechanism.

• Child Health Nursing Research
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• 제20권1호
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• pp.1-10
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• 2014

목적 본 연구의 목적은 초등학교 고학년 아동의 문제행동에 영향을 미치는 변수를 중심으로 탐색하여 영향요인들을 설명하는 모형을 구축하는 데 있다. 방법 본 연구를 위해 일개 도시의 3개 초등학교 고학년 아동과 그의 어머니를 대상으로 설문조사를 하였으며, 총 368명의 자료를 수집하였다. 수집된 자료는 SPSS 17.0 통계 프로그램을 이용하여 서술적 통계, t-test, ${\chi}^2$-test, ANOVA를 시행하였고, 가설적 모형 검정은 AMOS 17.0 통계 프로그램을 이용하였다. 결과 가설적 모형의 적합도는 GFI: .956, AGFI: .927, CFI: .953, RMSEA: .056, SRMR: .023으로 지지되었다. 모형에서 설정된 10개의 경로 중 6개의 경로가 지지되었다. 즉, 부모 양육태도에서 자아존중감으로, 부모양육태도에서 스트레스로, 부모 양육태도에서 스트레스 대처로, 부모양육태도에서 문제행동으로, 자아존중감에서 스트레스로, 자아존중감에서 문제행동으로 가는 경로가 지지되었다. 문제행동에 통계적으로 유의한 효과를 나타낸 것은 양육태도와 자아존중감이며 양육태도는 총 효과를, 자아존중감은 직접효과와 총 효과를 나타내었다. 결론 부모 양육태도와 자아존중감이 문제행동에 영향을 미치는 중요한 변수인 것으로 확인되었다. 그러므로 문제행동의 발생을 줄이기 위해서는 긍정적인 양육태도를 고취시키고 아동의 자아존중감을 높이는 간호중재가 이루어져야 하겠다.

• 한국의류산업학회지
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• 제14권5호
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• pp.821-833
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• 2012

This study surveys preferred style and fit problems according to stature groups like short, medium, and tall to offer information to upgrade the clothing fit and satisfaction for each stature group. For this purpose, the questionnaire was accomplished, and the respondents were 18-59 year old women divided into 3 stature groups. The 6 questions were: (1) the preferred clothing style for 3 stature groups, (2) the conformity of stature designation on ready-made clothing, (3) frequency of restrictions on clothing design selection because of short or tall stature, (4) the important part to decide a good fit for a jacket, blouse, slacks, and skirt, (5) dissatisfaction with clothing fit and frequency of mending, and (6) mended part for a correct fit. They were analyzed according to 3 stature groups and the differences among 3 stature groups were found on them. For example, short women preferred short jackets; however, tall women preferred a long length. Short women experienced more restrictions on clothing design (or length) selection because a short stature. Hip girth was more important to decide a good fit for tall women versus short or medium women. Armhole and slacks width from crotch to knee were important parts to decide a good fit for short women. The study results should be applied to clothing design (or pattern making) in order to upgrade clothing fit and satisfaction for each stature group.

• 한국의류산업학회지
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• 제18권2호
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• pp.216-224
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• 2016

Recently, the interest in a garment that accentuates a fit and slender body continues to be highly desirable. Customers frequently want to wear a slim designed jacket that fits well, reflecting the trends of being young and slim. Accordingly, this research collected information on brands with ready-to-wear slim fit tailored jackets that target female customers in their 30s. By identifying the jacket pattern design and production state by brand, and evaluating the appearance when wearing the jacket, I was able to draw up the following conclusions. First, the fit highlights many problems because of the difference between the model size of brands that targeted domestic women in their 30s and the standard somatotype of them. This can be solved by considering the somatotype of women in their 30s when choosing the models. Second, the relative simplicity of the pattern should allow a slim fit tailored jacket to be produced that fits the front, back and side well. This would lead to the development of a jacket that would fit better as well as allowing for ease of movement. Similar to this, the model size of domestic brands changes frequently and customers prefer the size of a slim model instead of the size suitable for a target's somatotype. This results in a limit on the levels of satisfaction regarding brand targets for body types. Accordingly, it is hoped that this research will become the standard data for the development of a slim fit tailored jacket that will fit women in their 30s well.

• Communications for Statistical Applications and Methods
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• 제9권1호
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• pp.229-240
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• 2002

Whether to use linear or quadratic model in the analysis of regression data is one of the important problems in classical regression model and measurement error model (MEM). In MEM, four goodness of fit test statistics are available In solving that problem. Two are from the derivation of estimators of quadratic MEM, and one is from that of the general $k^{th}$-order polynomial MEM. The fourth one is derived as a variation of goodness of fit test statistic used in linear MEM. The purpose of this paper is to find the most powerful test statistic among them through the small-scale simulation.

• 대한치과보철학회지
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• 제38권4호
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• pp.402-411
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• 2000

The dental profession is currently experiencing a technology explosion. Processes are being replaced by modern, inexpensive, and precise techniques that can be used to solve complex restorative problems. Electrical discharge machining(EDM, known as spark erosion in Europe) is a nonconventional, industrial technique that has application in dentistry. EDM may be defined as a metal removal process using a series of sparks to erode material from a workpiece in a liquid medium under carefully controlled conditions. EDM is recently adopted in the dental laboratory to fabricate precision attachments, hybrid tele-scope crowns, Ti-ceramic crowns. EDM has also been used to achieve a passive precision metal-to-metal fit between the substructure bar and the removable superstructure and to correct the fit of implant retained restorations. In this article, a brief history and explanation of EDM is discussed and a description of the use of this process for fabricating attachments and crowns or for correcting the fit of cast restorations is presented.

• 응용통계연구
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• 제24권2호
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• pp.411-424
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• 2011

조직연구에서 개인 직무, 개인-조직, 개인-환경 사이의 부합수준은 성과에 대한 주요한 영향요인으로 다루어져 왔다. 개인-조직이 추구하는 가치부합수준은 조직의 구성원으로 하여금 동기유발의 주요한 요인으로 조명되고 있다. 그러나 이런 부합수준 성과관련 연구에서 부합수준별 성과, 혹은 성과의 극대화률 설명하는 만족적 부합수준을 경정하기 위해 적용가능한 방법론의 개발관련 연구는 미미한 수준이다. 기존 연구에서 이런 부합수준-성과 간의 관계를 연구하는데 활용되는 지표들은 두 프로파일의 요인별 차이값, 차이제곱값, 차이 절대값, 측정 도구 사이의 상관관계를 나타내는 Q 값, 두 프로파일 사이의 순위상관을 나타내는 $Q_r$이다 그러나 이런 지표들은 두 프로파일의 부합수준 성과간의 관계를 연구하는데 많은 한계를 보여주고 있다. 특히, Edwards의 단일 설명변수에 대한 다항회귀분석과 반응표면분석을 활용한 방법론은 두 프로파일의 개별 설명변수 차이 값의 종속변수에 대한 영향만을 개별적으로 보여주고 설명변수를 모두 고려할 경우 차이 프로파일을 구성하는 개별요소별 성과를 극대화하는 값이나 수준이 어떠해야 하는지에 대해서는 해답을 주지 못하고 있다. 따라서 본 연구는 이러한 문제의 해결을 위해 다변량 이차다항회귀 모형을 적용하여 다중반응표면분석을 통해 개인-조직, 부합수준-성과 간의 관계를 검증하였다.